Denso 234-9021 Oxygen Sensor (Air and Fuel Ratio Sensor) Review

Denso 234-9021 Oxygen Sensor (Air and Fuel Ratio Sensor)
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Check Engine Light: P1135
P1135: A/F Sensor Heater Circuit Malfunction (Bank. 1 Sensor 1).
Bank. 1 Sensor 1 in my car was the sensor between the engine and the firewall. Its tricky to get to, but doable with a big wrench, and a couple of jack stands.
Here is what I did:
1) Find the sensor.
2) Spray it well with some PB Blaster while its warm, let it soak for a day.
3) Jacked it up, got underneath, and remove the sensor with a big 22mm wrench. This took a lot of effort.
4) Put some anti-seize (comes with it) on the new one and screw it in.
Problem fixed.

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